食品科学 ›› 2005, Vol. 26 ›› Issue (4): 218-221.

• 分析检测 • 上一篇    下一篇

高效液相色谱-电喷雾负离子串联质谱分析大豆皂甙

 肖军霞, 彭光华, 朱彩平, 任丹丹, 张声华   

  1. 华中农业大学食品科技学院
  • 出版日期:2005-04-15 发布日期:2011-09-19

Analysis of Soyasaponins by High Performance Liquid Chromatography-Negative Electrospray Ionization Tandem Mass Spectrometry

 XIAO  Jun-Xia, PENG  Guang-Hua, ZHU  Cai-Ping, REN  Dan-Dan, ZHANG  Sheng-Hua   

  1. School of Food Science and Technology, Huazhong Agricultural University
  • Online:2005-04-15 Published:2011-09-19

摘要: 采用大孔树脂柱层析分离得到大豆皂甙SS-Ⅰ、SS-Ⅱ、SS-Ⅲ三个级分,利用高效液相色谱-电喷雾负离子串联质谱对SS-Ⅲ进行了详细研究。结果表明:在线的高效液相色谱-电喷雾负离子一级质谱提供了准分子离子峰,二级质谱出现大量的糖链碎片信息,通过分析确定SS-Ⅲ中含有四种B组大豆皂甙,一种E组大豆皂甙,并发现一种未见报道的E组皂甙。

关键词: 大豆皂甙, 高效液相色谱-电喷雾负离子串联质谱, B组皂甙, E组皂甙

Abstract: Soyasaponins of three fractions(SS-Ⅰ、SS-Ⅱ、SS-Ⅲ) were obtained by D101A macroporous resin column chromatographic method. SS-Ⅲ were determined by high performance liquid chromatography-negative electrospray ionization tandem mass spectrometry(HPLC-ESI-/MS2).In the method, on line HPLC-ESI-/MS allowed to obtain rapidly useful information about the molecular weight while HPLC-ESI-/MS2 offered the abundant fragment ion peak. So four known group B soyasaponins and one group E soyasaponin were determined respectively. One new composition that had not been reported in soyasaponins before was identified.

Key words: soyasaponins, high performance liquid chromatography-negative electrospray ionization tandem mass spectrometry, group B soyasaponin, group E soyasaponin